Combination abdominal and back exerciser



FIG. 1 is a right, front perspective view of a combination abdominal and back exerciser showing our new design with the pivot arm member in a first position;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is bottom plan view thereof;

FIG. 8 is a right side view of the combination abdominal and back exerciser showing the pivot arm member in an alternate position;

FIG. 9 is a left side view of the combination abdominal and back exerciser showing the pivot arm member in the alternate position.

The broken line showing of the resistance elements are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a combination abdominal and back exerciser, as shown and described. 